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Secured Trading Service

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Dispute Resolution:
If issues arise (e.g., quality discrepancies, shipping delays), our team mediates and facilitates resolutions based on evidence.
Flexible Payment Options:
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Premium High Hardness Chrome Forged Steel Grinding Balls for Mining

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Product Details
Customization: Available
Material: Stainless Steel
Content: 60% ~ 65%
Shipping
Shipping Cost: Contact the supplier about freight and estimated delivery time.
Online Trading Protection
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T/T PayPal ApplePay GooglePay visa mastercard american express discover JCB diners club PIX SPEI OXXO PSE OZOW Platform-protected payments with refund support for eligible order issues.
Platform Logistics
Clearer shipment tracking with platform-supported logistics.
Inspection Service
Optional pre-shipment inspection for quality and quantity checks.
After-Sales & Dispute Handling
Platform-assisted dispute resolution, including refunds or returns when applicable.
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More than 50% of buyers repeatedly choose the supplier
Management Certification
The supplier has quality management system certification, including:
ISO9001:2015 certificate
ISO14001
ISO45001:2018 certificate
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  • Overview
  • Product Description
  • Product Parameters
  • Company Profile
  • Packing & Delivery
  • FAQ
Overview

Basic Info.

Model NO.
RJ-2862
Usage
Grind
Processing Type
Rolling Type
Size
10-150mm
Color
Black
Customized
Customized
Heat Treatment
Oil Quenching+Tempering
Hardness
45-68HRC
Advantage
Long Service Life & Good Wear Resistence
Certification
ISO9001
Transport Package
Ton Bags or Steel Drums
Specification
1.5-2.5mm, 1.1-1.5mm
Trademark
RONGJIAN
Origin
China

Packaging & Delivery

Package Size
110.00cm * 100.00cm * 100.00cm
Package Gross Weight
50.000kg

Product Description

Product Description
Premium High Hardness Chrome Forged Steel Grinding Balls for Mining
Premium High Hardness Chrome Forged Steel Grinding Balls for Mining
Chromium Alloy Cast Iron Grinding Balls
Composition:
Primary alloy: Cr (12-28%)
Microstructure: Chromium carbides (Cr7C3) in martensitic/bainitic matrix
Properties:
Hardness: HRC 58-65 (surface)
Impact toughness: 3-8 J/cm²
Wear mechanism: Hard carbides resist abrasion
Applications:
Cement industry (clinker grinding)
Mining (high-abrasion ores like iron/copper)
Advantage: Lowest cost per ton in high-Cr formulations (Cr > 18%)
Premium High Hardness Chrome Forged Steel Grinding Balls for Mining
Premium High Hardness Chrome Forged Steel Grinding Balls for Mining
Product Parameters
Model
Chemical Composition(%)
C
Si
Mn
Cr
S
P
45#
0.42-0.50
0.17-0.37
0.5-0.8
0.25max
0.035max
0.035max
50Mn
0.48-0.56
0.17-0.37
0.6-1.0
0.25max
0.035max
0.035max
60Mn
0.57-0.65
0.17-0.37
0.7-1.0
0.25max
0.035max
0.035max
65Mn
0.62-0.70
0.17-0.37
0.9-1.0
0.4-0.7
0.035max
0.035max
B2
0.70-0.80
0.17-0.37
0.7-0.8
0.5-0.6
0.035max
0.035max
B3
0.58-0.66
1.60-1.90
0.65-0.8
0.7-0.9
0.035max
0.035max
Company Profile
Premium High Hardness Chrome Forged Steel Grinding Balls for Mining
Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd.
Innovative Solutions for Environmental & Industrial Applications
Headquarters: Xiangdong District Industrial Park, Pingxiang City, Jiangxi Province, China
 
Core Capabilities
 Advanced Manufacturing: Custom-designed towers and systems in ceramic, metal, and plastic materials.
Comprehensive Product Portfolio: 200+ specifications including:
• Ceramic/metal/plastic packing materials
• Molecular sieves & activated alumina
• Catalysts & petrochemical additives
• Activated carbon & eco-friendly filtration media
Turnkey Services: Full-scale pollution control and wastewater treatment projects.
Corporate Strengths
  ISO 9001 Certified - Guaranteed quality management system compliance.
 300+ Workforce - Including 100+ specialized engineers and technicians.
30-Acre Production Base - Integrated R&D and manufacturing facilities.
 
Awards & Innovations
 National Science & Technology Achievement Award
Provincial Gold Medal & Famous Brand Product
17 Patented Technologies - Protecting proprietary advancements.
Premium High Hardness Chrome Forged Steel Grinding Balls for Mining
Packing & Delivery
Premium High Hardness Chrome Forged Steel Grinding Balls for Mining
FAQ
Premium High Hardness Chrome Forged Steel Grinding Balls for Mining

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